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Clase-11 8-9-2008 - MRP Planicacin de Requerimientos de o...

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MRP: Planificaci´ on de Requerimientos de Materiales El problema de las partes y piezas Prof. Jorge Vera (PUC) ICS 3 3 3 2 G esti´on d e O p eracion es 2 0 0 8 S ep tem b er 8 , 2 0 0 8 1 / 2 3 El contexto: Estamos toman do decision es en distin tos h orizon tes de tiempo Y a h emos calcu lado u n “ plan maestro de produ cci´on ” . P ero el produ cto pu ede estar fabricado de m´ u ltiples compon en tes .... Prof. Jorge Vera (PUC) ICS 3 3 3 2 G esti´on d e O p eracion es 2 0 0 8 S ep tem b er 8 , 2 0 0 8 2 / 2 3
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D ond e estam os: Prof. Jorge Vera (PUC) ICS 3 3 3 2 G esti´on d e O p eracion es 2 0 0 8 S ep tem b er 8 , 2 0 0 8 3 / 2 3 El p rob lem a: En produ ctos de m´ u ltiples compon en tes y en samblajes, ah ora h ay q u e prog ramar la produ cci´on de todas y cada u n a de las compon en tes. Y esto pu ede ser tedioso... U n a propu esta a la solu ci´on de este problema fu e desarrollada en los 6 0 s por J. O lick y en IB M como m´etodo de c´alcu lo y admin istraci´on compu tacion al. M R P : M aterial req u iremen t plan n in g . O bservaci´on : D iscu tiremos este tema en u n con texto de “ man u factu ra discreta” pero los prin cipio son v´alidos en otros ´ambitos tambi´en Prof. Jorge Vera (PUC) ICS 3 3 3 2 G esti´on d e O p eracion es 2 0 0 8 S ep tem b er 8 , 2 0 0 8 4 / 2 3
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L os d atos b ´asicos: L a L ista de M ateriales (B ill of materials) o “ receta” : U n a bicicleta est´a compu esta de: 2 ru edas C ada ru eda tien e: 1 n eu m´atico 1 c´amara 1 aro C ada aro tien e: 48 rayos 1 eje . . . Prof. Jorge Vera (PUC) ICS 3 3 3 2 G esti´on d e O p eracion es 2 0 0 8 S ep tem b er 8 , 2 0 0 8 5 / 2 3 L os d atos b ´asicos: P ero h ay varios modelos diferen tes de bicicletas... Y u san el mismo tipo de rayo. L a can tidad T O T A L de rayos req u eridos se calcu la su man do todo. Y ah ora: ¿Es lo req u erido lo q u e ten g o q u e produ cir?
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